Conan

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- Fix: ``conan new`` does not generate cross-building (like ``os_build``) settings by default. They make only sense for dev-tools used as ``build_requires``
- Fix: ``conaninfo.txt`` file does not dump settings with None values


:warning: Important
===============

Please don’t use cross-build settings `os_build`, `arch_build` for standard packages and libraries. There were some errors in the docs, using them for all packages. They are only useful for packages that are used via build_requires, like cmake_installer or mingw_installer.

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- Bugfix: Fixed bug from ``remove_from_path`` due to Windows path backslash
- Bugfix: Compiler detection in *conanbuildinfo.cmake* for Visual Studio using toolchains like LLVM (Clang)
- Bugfix: Added quotes to bash path.

=========
- Fix: Errors from remotes different to a 404 will raise an error. Disconnected remotes have to be removed from remotes or use explicit remote with ``-r myremote``
- Fix: cross-building message when building different architecture in same OS
- Fix: ``conan profile show`` now shows profile with same syntax as profile files
- Fix: generated test code in ``conan new`` templates will not run example app if cross building.
- Fix: ``conan export-pkg`` uses the conanfile.py folder as the default ``--source-folder``
- Bugfix: ``conan download`` didn't download recipe if there are no binaries. Force recipe download.
- Bugfix: Fixed blocked ``self.run()`` when stderr outputs large tests, due to full pipe.

------------

- Feature: ``run_in_windows_bash`` accepts a dict of environment variables to be prioritised inside the bash shell, mainly intended to control the priority of the tools in the path. Use with ``vcvars`` context manager and ``vcvars_dict``, that returns the PATH environment variable only with the Visual Studio related directories
- Fix: Adding all values to ``arch_target``
- Fix: ``conan new`` templates now use new ``os_build`` and ``arch_build`` settings
- Fix: Updated ``CMake`` helper to account for ``os_build`` and ``arch_build`` new settings
- Fix: Automatic creation of *default* profile when it is needed by another one (like ``include(default)``)
- BugFix: Failed installation (non existing package) was leaving lock files in the cache, reporting a package for ``conan search``
- BugFix: Environment variables are now applied to ``build_requirements()`` for ``$ conan install .``
- BugFix: Dependency graph was raising conflicts for diamonds with ``alias`` packages
- BugFix: Fixed ``conan export-pkg`` after a ``conan install`` when recipe has options

- Fix: Upgraded pylint and astroid to latest
- Fix: Fixed ``build_requires`` with transitive dependencies to other build_requires
- Fix: Improved pyinstaller creation of executable, to allow for py3-64 bits (windows)
- Deprecation: removed all ``--some_argument``, use instead ``--some-argument`` in command line.